ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 
221 
covering of “bristles” consists of needles of carbonate of lime, and 
that the psendopodia are remarkable in being long and rod-like. Of a 
definite nucleus he finds no trace. As to the systematic position of 
Trichospliserium, Greeff places it among the monothalamous Foramini- 
fera, although the relatively large openings of the shell and the long, 
rod-like, unbranched pseudopodia are certainly divergent. Perhaps 
Orbulinella smaragdea and the organism which Alexander Stuart 
described in 1866 as Coscinosphsera ciliata, are allied forms. 
Gregarines of Tunicates and Capitella.* — Dr. P. Mingazzini defines 
a new genus Lankesteria including Monocystis Ascidise, described by 
Prof. Eay Lankester ; a new genus 1 leurozyga (with lateral conjugation) 
including P. Distaplise sp. n. in Distaplia, and P. Biitschlii sp. n. in 
Phallusia ; a new genus Anchorina (of anchor-like form) from Capitella. 
Gregarines of Holothurians.f — Dr. P. Mingazzini establishes a new 
genus Cystobia for Gregarina holoturise which Anton Schneider found in 
Holoturia ( Holothuria ?), tubulosa, and for Cystobia Schneideri sp. n, 
which Mingazzini found in H. Poli and II. impatiens. 
* Atti R. Accad. Lincei (Rend), vii. (1891) pp. 407-14. 
t Tom. cit., pp. 313-19. 
1892, 
R 
